Xerographic reproducing apparatus



June 8, 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUCING APPARATUS Filed Dec. 23, 1960 24 Sheets-Sheet l INVENTORSY. ROGER H. EICHORN BY WILLIAM G. LEWIS A T TORNEY June 1965 R. H. EICHORN ETAL XERQGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 2 Filed Dec. 23, 1960 INVENTORS. ROGER H.EICHORN WILLIAM G. LEWIS A T TORNEY n 1965 R. H. EICHORN ETAL 3,187,651

XEROG'RAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 3 Filed Dec. 25, 1960 as. w Q I INVENTORS. ROGER H. EICHORN BY WILLIAM G. LEWIS ATTORNEY June 8, 1965 R. H. EICHORN ETAL XEROGRAPHI C REPRODUC ING APPARATUS Filed Dec. 23, 1960 24 Sheets-Sheet 4 A TTORNEY June 8, 1965 R. H. EICHORN ETAL XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 5 Filed Dec. 23, 1960 Mum E. "E ///7//////% I I INVENTORS ROGER H. EICHORN WILLIAM G. LEWIS BY ATTORNEY w W M/ June 8, 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHI C REPRODUC I N G APPARATUS Filed Dec. 25, 1960 24 Sheets-Sheet 6 INVENTORS. ROGER H. EICHORN WILLIAM G LEWIS BY kw, M

TTORNEY n 1965 R. H. EICHORN ETAL XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 7 Filed Dec. 25, 1960 vmm mm mm mv mv um mmn vmm /////A N/////////////////////// l INVENTORS. ROGER H. EICHORN WILLIAM G. LEWIS ATTORNEY n 1965 R. H. EICHORN ETAL XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 8 Filed Dec. 25, 1960 INVENTORS ROGER H. EICHORN BY WILLIAM G LEWIS Kfl/ ATTORNEY June 8, 1965 R. H. EICHORN ETAL XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 9 Filed D90. 23, 1960 i INVENTORS.

ROGER H. EICHORN WILLIAM G. LEWIS WW ATTORNEY June 8, 1965 R. H. EICHORN ETAL 3,137,651

XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 10 Filed Dec. 23, 1960 INVENTORS. ROGER H. EICHORN WILLIAM G.LEWIS ATTORNEY XEROGRAPHIC REPRODUCING APPARATUS Filed Dec. 25, 1960 24 Sheets-Sheet 11 JNVENTORS. ROGER H. EICHORN BY WILLIAM G. LEWIS ATTORNEY June 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUC ING APPARATUS Filed Dec. 23, 1960 24 Sheets-Sheet l2 ATTORNEY June 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 13 Filed Dec. 23, 1960 INVENTORS. ROGER H. EICHORN WILLIAM G. LEWIS & GI

A TTORNEY June 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUCING APPARATUS Filed Dec. 25. 1960 24 Sheets-Sheet l4 INVENTORS. ROGER H.E|CHORN WILLIAM G. LEWIS TTORNEY J' 8, 1955 R. H. EICHORN ETAL 3,187,651 I XEROGRAPHIC REFRODUCING APPARATUS 24 Sheets-Sheet 15 Filed Dec. 23, 1960 INVENTORS. ROGER H. EICHORN By WILLIAM G. LEWIS A T TORNEY J1me 1965 R, H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUC ING APPARATUS Filed Dec. 23, 1960 24 Sheets-Sheet 16 INVENTORS. ROGER H. EICHORN By WILLIAM G.LEW|S TTORNEY June 8, 1965 R. H. EICHORN ETAL 3,187,651

XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 17 Filed Dec. 23, 1960 INVENTORS. ROGER H. EICHORN H y/M ywuum G. LEWIS ATTORNEY June 8, 1965 R. H. EICHORN ETAL XEROGRAPHI C REPRODUC I NG APPARATUS 24 Sheets-Sheet 18 Filed Dec. 23, 1960 27 3 2/ 275 296 282 mum I mun i uvvmmfis.

276' ROGER H.EICHORN 285 286 27a WILLIAM G. LEWIS A TTORIVEY n 1965 R. H. EICHORN ETAL XEROGRAPHI C REPRODUC I NG APPARATUS Filed Dec. 23, 1960 24 Sheets-Sheet l9 lNVEN-TORS. ROGER H.EICHORN Y WILLIAM G. LEWIS A TTORNE Y J1me 1955 R. H. EICHORN ETAL XEROGRAPHIC REPRODUCING APPARATUS 24 Sheets-Sheet 20 Filed Dec. 23, 1960 NM ,0\| km 8w 3 3 R m3 RN 3w Kw k3 I l f 3w kw mm 3w m3 RNA f Pa. v mvw wvw Gm @w/ a v wow #u 1 11 v8 New k 3 n mm :&

'; INVENTOR. NROGER H.E|CHORN WILLIAM G. LEWIS W ZM/ 

1. A XEROGRAPHIC REPRODUCING APPARATUS INCLUDING IN COMBINATION A FRAME, A XEROGRAPHIC DRUM JOURNALED FOR ROTATION IN SAID FRAME, CHARGING MEANS POSITIONED TO PLACE AN ELECTROSTATIC CHARGE ON SAID XEROGRAPHIC DRUM, A COPY DRUM JOURNALED FOR ROTATION IN SAID FRAME, A SHEET GRIPPER MEANS CARRIED BY SAID COPY DRUM, SAID SHEET GRIPPER MEANS BEING ADAPTED TO COOPERATE WITH SAID COPY DRUM TO ENGAGE THE LEADING EDGE OF A COPY TO BE REPRODUCED, A PROJECTION MECHANISM POSITIONED ADJACENT SAID COPY DRUM TO PROJECT A RADIATION IMAGE OF A COPY AS IT IS CARRIED BY SAID COPY DRUM ONTO SAID XEROGRAPHIC DRUM TO FORM AN ELECTROSTATIC LATENT IMAGE THEREON, AN INTERPOSER MEANS POSITIONED ADJACENT SAID COPY DRUM FOR MOVEMENT INTO A FIRST POSITION TO EFFECT OPERATION OF SAID SHEET GRIPPER MEANS AND TO A SECOND POSITION IN WHICH IT IS IN AN INOPERATIVE RELATION TO SAID SHEET GRIPPER MEANS, DEVELOPER MEANS POSITIONED ADJACENT SAID XEROGRAPHIC DRUM TO DEVELOP THE ELECTROSTATIC LATENT IMAGE FORMED ON SAID XEROGRAPHIC DRUM, PAPER FEED MEANS FOR SERIATIM FEEDING OF SHEET SUPPORT MATERIAL TO SAID XEROGRAPHIC DRUM, TRANSFER MEANS POSITIONED ADJACAENT SAID XEROGRAPHIC DRUM TO EFFECT TRANSFER OF THE DEVELOPED IMAGE ON SAID XEROGRAPHIC DRUM TO A SHEET OF SUPPORT MATERIAL, DRIVE MEANS CONNECTED TO SAID XEROGRAPHIC DRUM, SAID COPY DRUM, AND SAID PAPER FEED MEANS TO EFFECT SYNCHRONIZED MOVEMENT OF SAID XEROGRAPHIC DRUM, SAID COPY DRUM AND SAID PAPER FEED MEANS, SAID XEROGRAPHIC DRUM BEING ROTATED AT LEAT ONE REVOLUTION TO FIRST EFFECT A REPRODUCING CYCLE AND THEN ROTATED AT LEAST A SECOND REVOLUTION TO EFFECT A TIMING OUT CYCLE, AND, CONTROL MEANS CONNECTED TO SAID INTERPOSER MEANS, AND TO SAID PAPER FEED MEANS TO EFFECT THE OPERATION OF SAID PAPER FEED MEANS ONLY DURING SAID REPRODUCING CYCLE OF SAID XEROGRAPHIC DRUM AND TO MOVE SAID INTERPOSER MEANS. 